Opin vísindi

Problems with visual statistical learning in developmental dyslexia

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Sigurdardottir, Heida Maria
dc.contributor.author Daníelsdóttir, Hilda Björk
dc.contributor.author Guðmundsdóttir, Margrét
dc.contributor.author Hjartarson, Kristján Helgi
dc.contributor.author Þórarinsdóttir, Elín Ástrós
dc.contributor.author Kristjansson, Arni
dc.date.accessioned 2017-05-15T16:12:26Z
dc.date.available 2017-05-15T16:12:26Z
dc.date.issued 2017-04-04
dc.identifier.citation Sigurdardottir, HM et al.Problems with visual statistical learning in developmental dyslexia. Sci. Rep. 7, 606; doi: 10.1038/s41598-017-00554-5 (2017).
dc.identifier.issn 2045-2322
dc.identifier.uri https://hdl.handle.net/20.500.11815/269
dc.description.abstract Previous research shows that dyslexic readers are impaired in their recognition of faces and other complex objects, and show hypoactivation in ventral visual stream regions that support word and object recognition. Responses of these brain regions are shaped by visual statistical learning. If such learning is compromised, people should be less sensitive to statistically likely feature combinations in words and other objects, and impaired visual word and object recognition should be expected. We therefore tested whether people with dyslexia showed diminished capability for visual statistical learning. Matched dyslexic and typical readers participated in tests of visual statistical learning of pairs of novel shapes that frequently appeared together. Dyslexic readers on average recognized fewer pairs than typical readers, indicating some problems with visual statistical learning. These group differences were not accounted for by differences in intelligence, ability to remember individual shapes, or spatial attention paid to the stimuli, but other attentional problems could play a mediating role. Deficiencies in visual statistical learning may in some cases prevent appropriate experience-driven shaping of neuronal responses in the ventral visual stream, hampering visual word and object recognition.
dc.description.sponsorship This research was funded in part by a postdoctoral grant (Recruitment Fund of the University of Iceland) awarded to Heida Maria Sigurdardottir. Arni Kristjansson is funded by the Icelandic Research Fund (IRF), the Research Fund at the University of Iceland, and the European Research Council (ERC).
dc.format.extent 606
dc.language.iso en
dc.publisher Springer Nature
dc.relation.ispartofseries Scientific Reports;7
dc.rights info:eu-repo/semantics/openAccess
dc.subject Human behaviour
dc.subject Learning and memory
dc.subject Object vision
dc.subject Lesblinda
dc.subject Minni
dc.title Problems with visual statistical learning in developmental dyslexia
dc.type info:eu-repo/semantics/article
dcterms.license Creative Commons Attribution 4.0 International License
dc.description.version Peer Reviewed
dc.description.version Ritrýnt tímarit
dc.identifier.journal Scientific Reports
dc.identifier.doi 10.1038/s41598-017-00554-5
dc.contributor.department Sálfræðideild (HÍ)
dc.contributor.department Faculty of Psychology (UI)
dc.contributor.school Heilbrigðisvísindasvið (HÍ)
dc.contributor.school School of Health Sciences (UI)

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